Statistical Analysis of the Best SAT Practice Tests

Test Preparation
1

<p>Hi, </p>

<p>I believe one of the most asked questions is, “which book has the best practice tests for the SAT?” And the most frequent response to this is, “the blue book, because it’s made by the testmaker.” And while that is logically sound. I cannot find anyone who has attempted to prove which practice test gives results most near the actual SAT. </p>

<p>So this is my project:
I want to find using statistics the test maker who produces the most realistic practice SATs. </p>

<p>Methodology:
Using a statistical TTest which compares the means of different populations, we can produce a metric to find out if there is a statistically significant difference.</p>

<p>Initial findings:
I have only about 6 points for each of the following tests:
Barrons,
Sparknotes,
Collegeboard,
Princeton,
And the results are suprising, and not in line with what I had thought.
But before I can publish, I need more data points–at least 25 per test. </p>

<p>So my appeal to you is this:
Please let me know 2 things

  1. the difference between the last practice test you took and the actual SAT (and which direction you measured–SAT minus Practice or vice versa)
  2. the name of the practice test publisher (Barrons/Collegeboard/Sparknotes, etc.)</p>

<p>Thanks for your help, and check back for results.</p>